A Text-book of Assaying: For the Use of Those Connected with Mines |
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Page 3
... alloy in bar or ingot : clean the upper surface of the bar , and bore through the bar . Use the borings . If the ... alloys are best INTRODUCTORY . 3.
... alloy in bar or ingot : clean the upper surface of the bar , and bore through the bar . Use the borings . If the ... alloys are best INTRODUCTORY . 3.
Page 4
... alloys are best sampled by melting and granulating . The student must carefully avoid any chance of mixing dirt or particles of other samples with the par- ticular sample which he is preparing . One ore should be done at a time , and ...
... alloys are best sampled by melting and granulating . The student must carefully avoid any chance of mixing dirt or particles of other samples with the par- ticular sample which he is preparing . One ore should be done at a time , and ...
Page 87
... in a button of lead ; and ( 2 ) the cupellation of the resulting alloy . The concentration of the button of lead may be effected either by scorification or PART II CHAPTER IX SILVER, GOLD, PLATINUM, MERCURY SILVER-Detection Dry assay.
... in a button of lead ; and ( 2 ) the cupellation of the resulting alloy . The concentration of the button of lead may be effected either by scorification or PART II CHAPTER IX SILVER, GOLD, PLATINUM, MERCURY SILVER-Detection Dry assay.
Page 98
... alloy to be cupelled is placed on them . The reasons for this are sufficiently obvious : the sudden evolution of much steam will blow a cupel to pieces ; and , if the whole of the water has not been removed before the cupel is filled ...
... alloy to be cupelled is placed on them . The reasons for this are sufficiently obvious : the sudden evolution of much steam will blow a cupel to pieces ; and , if the whole of the water has not been removed before the cupel is filled ...
Page 99
... alloy , thin off later to a luminous film . At the end this film appears in commotion , then presents a brilliant play of colours , and , with a sudden extinction , the operation is finished . The metal again glows for an instant whilst ...
... alloy , thin off later to a luminous film . At the end this film appears in commotion , then presents a brilliant play of colours , and , with a sudden extinction , the operation is finished . The metal again glows for an instant whilst ...
Other editions - View all
A Text Book of Assaying: For the Use of Those Connected with Mines Cornelius Beringer,John Jacob Beringer No preview available - 2016 |
A Text-Book of Assaying for the Use of Those Connected with Mines Cornelius Beringer,John Jacob Beringer No preview available - 2015 |
TEXT-BK OF ASSAYING FOR THE US Cornelius Beringer,John Jacob 1857-1915 Beringer No preview available - 2016 |
Common terms and phrases
20 grams acetic acid acid solution added alkaline alloy alumina ammonia ammonium antimony aqua regia arsenic baric chloride beaker bismuth boiling borax bulk c.c. of dilute c.c. of hydrochloric c.c. of nitric c.c. of water calculated carbonate cent chromate colour containing copper crucible cupel determined dilute ammonia dilute hydrochloric acid dioxide dish dissolved dried Effect of Varying excess ferric chloride ferric oxide ferrous filter filtrate flask fused fusion gives gold gram of copper grams grams of lead GRAVIMETRIC heat hydrate hydrochloric acid hydrogen ignited insoluble iodide iodine iron lime liquid litre magnesia manganese metal method milligrams mineral mixed multiplied nickel nitre nitric acid oxidising oxygen percentage permanganate phosphate phosphorus platinum potash potassium powdered precipitate present quantity residue salts sample separated silica silver slag soda sodic sodium acetate soluble standard solution substance sulphate sulphide sulphuric acid temperature titration tube uranium VOLUMETRIC washed weighed zinc
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Page 7 - Crown 4to. Cloth. Part I. — Elementary Chemistry, 2/. Part II. — The Chemistry of the Non-Metallic Elements, including a Comprehensive Course of Class Experiments, 10/6.
Page 15 - ELEMENTS OF METALLURGY. A PRACTICAL TREATISE ON THE ART OF EXTRACTING METALS FROM THEIR ORES. BY J. ARTHUR PHILLIPS, M.lNST.OE, FCS, FGS, <fcc.
Page 23 - COBBETT (William): ENGLISH GRAMMAR, in a Series of Letters, intended for the use of Schools and Young Persons in general.
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Page 21 - AE A Manual of Marine Engineering. Comprising the Designing, Construction and Working of Marine Machinery.